What is a deadline calculator?

A deadline calculator works out a compliance or response date by adding a set number of days to a start date, skipping weekends and UK bank holidays when business days are used.

How many working days is a UK FOI response deadline?

Under the Freedom of Information Act 2000, public authorities must respond within 20 working days from the day after receipt. Working days exclude weekends and UK bank holidays.

How many days is a Subject Access Request deadline?

Under UK GDPR, organisations must respond to a Subject Access Request (SAR) within 30 calendar days, which includes weekends. The deadline can be extended by up to two months for complex requests.

Does a deadline calculator include weekends?

It depends on the type of deadline. Business day deadlines skip weekends and bank holidays. Calendar day deadlines (like SARs and cooling-off periods) count all days, including weekends.

What is a 14-day cooling-off period?

Under UK Consumer Contracts Regulations, consumers have a 14 calendar day right to cancel most goods or services purchased online or off-premises, starting the day after delivery or contract conclusion.

UK Deadline Calculators

In-depth guides to FOI, SAR, notice period, cooling-off and business-day deadlines - with free calculators to check the exact date.

Browse the guides

FOI & SAR deadlines

Calculate the correct response date under the Freedom of Information Act and UK GDPR, with ICO-compliant counting rules.

Notice periods & cooling-off

Work out statutory notice periods, 14-day cancellation windows, and tenancy notice deadlines.

Business day calculations

Add or count working days between dates, excluding weekends and UK bank holidays.

Deadline guides

Plain-English guides with worked examples and links to UK legislation. Start with the guide that matches your question, then check your exact date with a calculator.

FOI 20 Working Days ExplainedHow to count the 20 working day FOI response deadline under the Freedom of Information Act 2000.Subject Access Request Time Limit UKThe one calendar month SAR deadline under UK GDPR, including ID checks and extensions.How to Work Out Notice Period UKEmployment and tenancy notice periods: 4 weeks vs 1 month and statutory minimums.When Does a Cooling-Off Period Start?The 14-day cancellation window under the Consumer Contracts Regulations 2013.FOI Due Date Calculator UK GuideCalculate an FOI due date step by step, with clock-start rules and extensions.Notice Period Calculator GOV AlternativeWhy there is no official GOV.UK notice calculator, and how to get accurate dates.

Browse all guides

Use the calculator

Need the exact date? Pick a calculator below - weekends and UK bank holidays are skipped automatically.

Subject Access Request Deadline CalculatorSAR deadline calculator for UK data protection rights requests.FOI Calculator UKUse the FOI due date calculator to count the 20 working day Freedom of Information response deadline.Complaint Response Deadline CalculatorCalculate complaint response planning dates for FCA-style, NHS-style, and 20 working day complaint timelines.Notice Period Calculator UKCalculate a UK notice period end date, including 1 month notice and 4 weeks notice examples.14 Day Cooling-Off Period CalculatorCalculate a 14 day cooling-off period end date for common UK consumer cancellation scenarios.Tenancy Notice Period CalculatorCalculate a simple UK tenancy notice planning date, with caution around changing rules.

FOI, notice period and working day calculators

Business day and invoice tools

New calculators for common date and payment searches.

5 Business Days From Today CalculatorCalculate the date 5 business days from today, excluding weekends and listed UK bank holidays.10 Business Days From Today CalculatorCalculate the date 10 business days from today, excluding weekends and listed UK bank holidays.30 Business Days From Today CalculatorCalculate the date 30 business days from today, excluding weekends and listed UK bank holidays.30 Working Days From Today UKFind the UK working-day date after 30 working days, excluding weekends and bank holidays.5 Business Days Before a Date CalculatorCalculate the date 5 business days before any selected date.10 Business Days Before a Date CalculatorCalculate the date 10 business days before any selected date.Net 30 Due Date CalculatorCalculate a net 30 invoice due date from an invoice date.Invoice Due Date CalculatorCalculate invoice due dates using calendar day or business day payment terms.Bank Holidays Business Days 2026UK bank holidays excluded by the calculators in 2026.

Templates and widgets

Download tracker templates or embed a small deadline calculator on another website.

Deadline tracker templatesFree Excel and CSV starters for tracking SAR, FOI, complaint and notice deadlines.Free website widgetsEmbed general deadline, FOI working-day and cooling-off calculators on helpful guidance pages.

Important: This site is a planning aid, not legal advice. Deadlines can depend on facts, policy wording, jurisdiction, service rules, pauses, extensions and changing law. Always verify important deadlines with the official guidance or a qualified adviser.

Related calculators

More free UK employment and deadline tools.

Holiday Entitlement CalculatorWork out statutory holiday entitlement for full-time, part-time and variable-hours workers. Statutory Redundancy Pay CalculatorCalculate your minimum legal redundancy pay using official 2026 rates. Business Day CalculatorCount working days between dates, excluding weekends and bank holidays.